Authorities say the individual was holding a knife to a woman's neck.
A Berkeley County, West Virginia Sheriff's Deputy was placed on administrative leave after shooting an armed man.
Authorities responded to 88 Yukon Drive early Saturday morning where a man and a woman had just come out of the house. The man was armed with a rifle and was holding a knife to the woman's neck. He was told to put down his weapons, but refused. He pointed his rifle at Deputy Ralph Pierce, who fired his service revolver, striking Raymond Wallace II once in the hip.
Wallace, 23, was eventually subdued and flown to a medical facility in Washington DC.
He's expected to be charged upon his release with kidnapping, attempted robbery, attempted arson and 2nd-degree assault.
Investigators responding to the scene concluded through witness interviews and evidence gathered on site that Wallace had doused areas of the home with gasoline and planned to burn it.
Prior to this incident, a woman met with deputies at Martinsburg City Hospital and told them that Wallace sexually assaulted her hours earlier. The Sheriff's Office says Wallace also called the victim's family to taunt them and to say he was holding a female friend at knifepoint.
Deputy Pierce remains on administrative leave pending an investigation of this incident, the Sheriff's Office says.